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regmap: irq: initialize all irqs to wake disabled 

The kerneldoc for irq_set_irq_wake() says:

    Enable/disable power management wakeup mode, which is
    disabled by default.

regmap_irq_set_wake() clears bits to enable wake for an interrupt,
and sets bits to disable wake. Hence, we should set all bits in
wake_buf initially, to mirror the expected disabled state.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Stephen Warren 2012-08-01 13:57:24 -06:00 committed by Mark Brown
parent 685879f4b2
commit 40052ca0c2
1 changed files with 16 additions and 0 deletions
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16
drivers/base/regmap/regmap-irq.c
View File

@ -322,6 +322,22 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
}
}
/* Wake is disabled by default */
if (d->wake_buf) {
for (i = 0; i < chip->num_regs; i++) {
d->wake_buf[i] = d->mask_buf_def[i];
reg = chip->wake_base +
(i * map->reg_stride * d->irq_reg_stride);
ret = regmap_update_bits(map, reg, d->wake_buf[i],
d->wake_buf[i]);
if (ret != 0) {
dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
reg, ret);
goto err_alloc;
}
}
}
if (irq_base)
d->domain = irq_domain_add_legacy(map->dev->of_node,
chip->num_irqs, irq_base, 0,